JP2020011752A - Bumper conveyance device - Google Patents

Abstract

To provide a bumper conveyance device which can convey bumpers of one automobile as one unit efficiently, even if dimensions, shapes, and specifications differ to match to a production takt of an automotive production line.SOLUTION: A lower stage frame 20 for supporting a bumper and an upper frame for supporting a bumper are arranged as superposing vertically above a base stage 10. A lower stage front bumper support body 40 and a lower stage back bumper support body 50 are provided to a lower stage frame body 30 of the lower stage frame so as to be able to adjust positions by being made to slide in the front, back, right and left directions, respectively. An upper stage front bumper support body 80 and an upper stage back bumper support body 90 are provided to an upper stage frame body 70 of the upper stage frame so as to be able to adjust by being made to slide in the front, back, right and left directions, respectively.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bumper transport device for supplying a bumper for parts to an automobile production line.

  2. Description of the Related Art Conventionally, a bumper as a part is supplied to an automobile production line in accordance with a production tact.

  Conventionally, as such a technique, for example, there is a technique disclosed in Patent Document 1.

JP-A-2002-068273

The conventional technology disclosed in Patent Document 1 discloses a technology in which even a single bumper having a different length or shape or a different shape can easily carry a large number of bumpers in a stacked manner. On the other hand, it is desired to supply bumpers as parts smoothly in accordance with the production tact of an automobile production line using current technology.
However, according to the conventional technique disclosed in Patent Document 1, although bumpers having different shapes can be transported in large quantities, there is a problem that the bumpers cannot be adjusted to the production tact of the production line. In order to transport and supply one bumper in accordance with the production tact of the production line, it is necessary to use a dedicated transport device due to differences in bumper specifications and shapes. It has to be prepared, and there is a problem that the supply technology becomes complicated and efficiency cannot be improved.

  The present invention has been made in view of the above-described problems, and efficiently adapts to the production tact of an automobile production line, even if the dimensions, shape, and specifications are different, in units of one bumper. It is an object of the present invention to provide a bumper transport device capable of transport.

  According to a first aspect of the present invention, a lower frame for supporting a bumper and an upper frame for supporting a bumper are disposed on a base so as to be vertically overlapped with each other, and the lower frame includes a lower frame main body, A bumper support and a lower rear bumper support are provided so as to be adjustable in position by sliding forward and backward and left and right, respectively. The upper frame includes an upper frame main body, an upper front bumper support, and an upper rear bumper support. Are slidably forward, backward, left and right, respectively, so as to be adjustable in position.

In the first aspect, a pair of front and rear bumpers of a vehicle are vertically held on a lower frame and an upper frame on a base.
In the lower frame, a bumper attached to either the front or the rear of the vehicle is placed on the lower front bumper support and the lower rear bumper support of the lower frame main body. Here, the lower front bumper support and the lower rear bumper support are configured so that their positions can be adjusted, and they can be adjusted by sliding them back and forth and left and right according to the shape, dimensions and specifications of the bumper. Can hold the bumper.
Similarly, in the upper frame, the bumpers are placed on the upper front bumper support and the upper rear bumper support of the upper frame body. In the upper frame, a bumper different from the bumper mounted on the lower frame is mounted. The upper front bumper support and the upper rear bumper support are configured so that their positions can be adjusted.Slide them back and forth, left and right according to the shape, dimensions and specifications of the bumper, and adjust the position appropriately. By holding the bumper, the front and rear bumpers can be transported safely and appropriately.

  In a second aspect of the present invention, a lower frame for supporting a bumper and an upper frame for supporting a bumper are disposed on a base so as to be vertically overlapped with each other, and the lower frame includes a lower frame main body, A front bumper support and a lower rear bumper support are arranged in front and rear, and the lower front bumper support is slid left and right to be adjustable in position, and the lower rear bumper support is slid back and forth and left and right. In the upper frame, the upper frame main body, the upper front bumper support, and the upper rear bumper support are arranged back and forth, and the upper front bumper support is slid left and right. The upper rear bumper support is slidable back and forth and left and right to adjust the position.

In the second aspect of the present invention, similarly to the first aspect, a pair of front and rear bumpers of the vehicle are vertically held on a lower frame and an upper frame on a base.
In the lower frame, a bumper attached to either the front or the rear of the vehicle is placed on the lower front bumper support and the lower rear bumper support of the lower frame main body. Here, the lower front bumper support is slid left and right to adjust according to the shape, dimensions and specifications of the bumper, and the lower rear bumper support is slid back and forth and left and right to adjust the position of the bumper appropriately. To keep.
Similarly, in the upper frame, the bumpers are placed on the upper front bumper support and the upper rear bumper support of the upper frame main body. Depending on the specification, it will be either the front or rear bumper on the side opposite to the lower frame. Then, adjust the upper front bumper support by sliding it to the left and right according to the shape, dimensions and specifications of the bumper, and slide the front rear bumper support back and forth and left and right to adjust the position and hold the bumper properly In addition, the front and rear bumpers can be transported safely and appropriately.
In the second embodiment, the structure is simplified because the front support is only for left and right adjustment.

In a third aspect of the present invention, a lower frame for supporting a bumper and an upper frame for supporting a bumper are disposed on a base so as to be vertically overlapped with each other. The front bumper support and the lower rear bumper support are arranged in front and rear, and the lower front bumper support is slid left and right to be adjustable in position, and the lower rear bumper support is slid back and forth and left and right. In the upper frame, the upper frame main body, the upper front bumper support, and the upper rear bumper support are arranged back and forth on the upper frame, and the upper front bumper support is slid left and right. The upper rear bumper support is slidable back and forth and right and left to adjust the position, and a support column is erected at the rear end of the lower frame body. A bumper conveying apparatus characterized by supporting the upper frame body on the pillars. According to the third aspect of the present invention, similarly to the first and second aspects, a pair of front and rear bumpers of the vehicle are vertically held on a lower frame and an upper frame on a base.
In the lower frame, a bumper attached to either the front or rear of the vehicle is placed on the lower front bumper support and the lower rear bumper support of the lower frame body. The lower front bumper support slides left and right to adjust according to the shape, dimensions and specifications of the placed bumper, and the lower rear bumper support slides back and forth and right and left to adjust the position and To be held.
Similarly, in the upper frame, bumpers that are not mounted on the lower frame are placed on the upper front bumper support and the upper rear bumper support of the upper frame body. The upper front bumper support is slid left and right to adjust the position, and the upper rear bumper support is slid back and forth and left and right to adjust the position so that the bumper can be properly held.
Here, a support column is erected at the rear end of the lower frame main body, and the upper frame main body is supported at the upper end of the support column, so that a space for inserting a bumper into the upper frame is secured, and smooth operation can be performed. it can.
In this way, the front and rear bumpers can be set smoothly and easily, and the bumpers can be transported safely and appropriately.

In a fourth aspect of the present invention, a lower frame for supporting a bumper and an upper frame for supporting a bumper are disposed on a base so as to be vertically overlapped with each other. A front bumper support and a lower rear bumper support are arranged back and forth, and the lower front bumper support is supported on a horizontal rail member laid on the lower frame body, and a support bracket is provided on the horizontal rail member. And a bolt, which are slid left and right to adjust the position, the lower rear bumper support is supported via a vertical rail member on a horizontal rail member laid horizontally on the lower frame body, and the vertical rail member Position can be adjusted by sliding back and forth with the support bracket and bolt, and position can be adjusted by sliding the vertical rail member to the horizontal rail member with the support bracket and bolt left and right. Provided on the,
In the upper frame, an upper frame main body, an upper front bumper support, and an upper rear bumper support are disposed back and forth, and the upper front bumper support is a horizontal rail member that is laid on the upper frame body. The upper rear bumper support is vertically slid on a horizontal rail member on the upper frame body, and is slid left and right with a support bracket and bolts on the horizontal rail member. It is supported via a member, and it is slid back and forth on the vertical rail member with a support bracket and a bolt so that the position can be adjusted. The vertical rail member is slid left and right on the horizontal rail member with a support bracket and a bolt. And a support pillar is provided upright at a rear end of the upper frame body, and the upper frame body is supported on the support pillar. It is a device.
The fourth aspect is a more specific configuration of the support of the bumper. That is, the lower front bumper support is supported on a horizontal rail member laid horizontally on the lower frame body, and when the bolts of the support brackets are loosened, the lower front bumper support moves right and left with respect to the horizontal rail member. The lower front bumper support is fixed when the bolt is tightened at an appropriate position.
Similarly, the lower rear bumper support can be fixed in position by loosening the bolts of the support brackets to the vertical rail members, moving the lower rear bumper support back and forth, and tightening the bolts. Then, the bolt of the support bracket for fixing the vertical rail member to the horizontal rail member is loosened, the lower rear bumper support is moved right and left together with the vertical rail member, and the bolt is tightened and fixed at that position.
As described above, each support member can be adjusted left and right or front and rear, and the bumpers can be conveyed with a high degree of freedom for bumpers having different dimensions and specifications.

In a fifth aspect of the present invention, one of the lower front bumper support and the upper front bumper support is provided with a flat receiving portion extending in a front-rear direction, and the other is provided with a saw-toothed receiving member arranged in a front-rear direction. It is a bumper conveyance apparatus as described in aspect 1, 2-4 characterized by having provided the part.
The flat receiving portion extending in the front-rear direction has a high degree of freedom in the front-rear position on which the bumper is placed, and can widely support bumpers having different dimensions and specifications. In the case where the saw-toothed receiving portions arranged in front and rear are provided, the degree of freedom is ensured by placing the bumpers on the saw-toothed receiving portions at appropriate front and rear positions.

  In another aspect of the present invention, each of the rail members has a guide groove, and a bolt can be engaged with the guide groove so that the position can be adjusted. Device. In the sixth aspect, since the bolt is engaged with the guide groove and guided, the adjustment operation is easy and the workability is good.

  Further, still another aspect of the present invention is to change the position of the lower front bumper support, the lower rear bumper support, the upper front bumper support, and the upper rear bumper support with a linear guide structure. The bumper transport device according to aspect 1 or 2, wherein the position is adjustable by being supported by a lockable locking mechanism. In the seventh aspect, the positions of the respective supports can be changed and fixed by the linear guide structure and the locking mechanism, and the adjustment of the respective supports can be easily performed, and the workability is good.

  According to still another aspect of the present invention, a lower frame for supporting a bumper is moved back and forth and supported so as to be able to be pulled out on a base, and a lock mechanism for holding the fixed position and a stopper for pulling out are provided. It is a bumper conveyance apparatus as described in aspect 1, 2-4 characterized by the above-mentioned. In the eighth mode, when the lock is released from the state held in the fixed position by the lock mechanism and the lower frame is pulled out, the stopper hits and stops.

  According to the present invention, the support is adjusted and supported in accordance with the difference in the shape, dimensions, and specifications of the front and rear bumpers. This makes it possible to achieve an excellent effect of efficiently transporting a single bumper unit in accordance with the production tact of an automobile production line.

It is a perspective view showing the bumper conveyance device concerning one embodiment of the present invention. It is a side view showing the bumper conveying device concerning one embodiment of the present invention. It is a perspective view showing the state where the bumper of the bumper conveyance device concerning one embodiment of the present invention was held. FIG. 4 is a sectional view taken along line AA of FIG. 3, showing the bumper transport device according to one embodiment of the present invention. FIG. 4 is a sectional view taken along line BB of FIG. 3, showing the bumper transport device according to one embodiment of the present invention. FIG. 3 is a perspective view of the lower frame as viewed from below, showing the bumper transport device according to one embodiment of the present invention.

  Next, an embodiment for carrying out the present invention will be described with reference to the drawings. The drawings are schematic, and the dimensional ratios and the like of the respective parts do not always match actual ones. In addition, it is needless to say that dimensional relationships and ratios are different between drawings. The embodiments will be described in the following order.

  Hereinafter, embodiments will be described with reference to FIGS. 1 to 6. As shown in FIGS. 1 and 2, the bumper transport device 1 includes a lower frame main body 30 for supporting a front bumper FB and a lower frame body 30 for supporting a front bumper FB, and an upper stage 60 for supporting a rear bumper RB. The frame body 70 is arranged so as to be vertically overlapped. Each of the lower frame main body 30 and the upper frame main body 70 has a substantially rectangular shape in which a vertical member and a horizontal member are fixed vertically and horizontally.

  The base 10 has holding members 12, 12 extending in the front-rear direction fixed to the left and right ends of the upper portion of the leg frame 11, and holding rail members 13 fixed on the holding member 12. A support column 15 extending upward from the rear portion of the lower frame main body 30 is erected on the base 10, and a support arm 16 extending forward from an upper end of the support column 15 is attached to the upper frame main body via a holding member 17. 70 are carried.

  As shown in FIGS. 1, 2 and 5, the lower frame main body 30 extends forward with the base ends of the side end vertical rail members 31 and 31 fixed to both ends of the rear end horizontal rail member 32. Inner vertical rail members 33, 33 each having an end fixed to a rear end horizontal rail member 32 extend forward, and the side end vertical rail member 31 and the inner vertical rail member 33 are connected by a front end connecting member, and Are formed with frame bodies 35, 35. Further, the left and right inner vertical rail members 33, 33 are connected by a frame connecting member 36 to form the lower frame main body 30.

  On the lower frame body 30, a lower front bumper support 40 for supporting one end of the front bumper FB and a lower rear bumper support 50 for supporting the other end of the front bumper FB are disposed on the front and rear sides. It is. The left and right side end vertical rail members 31, 31 of the lower frame body 30 are slidably held on the holding rail member 13 of the base 10 via the sliders 14, 14. Thereby, the lower frame main body 30 for supporting the bumper is supported on the base 10 so as to be able to move forward and be pulled out.

  The lower front bumper support 40 is supported on horizontal rail members 37, 37 whose support legs 41, 41 are suspended on the frame 35 of the lower frame main body 30, and the horizontal rail member 37 supports the support bracket 21 and the bolt. At 22, it is slidably fixed to the left and right. On the support legs 41, 41 of the lower front bumper support 40, a flat receiving portion 42 extending back and forth substantially half the length of the lower frame body 30 in the front and rear direction is held. The lateral rail member 37 has a rail groove, and the bolt 22 is configured to be screwed into the female screw through the rail groove. I have.

  The lower rear bumper support 50 has a bumper receiving member 52 provided on a support leg 51, and the bumper receiving member 52 is provided with a notch 53 into which the lower end of the front bumper FB is fitted. The support leg 51 is supported via a vertical rail member 39 on a horizontal rail member 38 laid across the lower frame main body 30, and is provided so as to be adjustable in the front-rear direction by the support bracket 23 and the bolt 24. . Further, the vertical rail member 39 is provided on the horizontal rail member 38 and the side end vertical rail member 31 with the support bracket 25 and the bolt 26 so as to be freely adjustable in the left-right direction. With this configuration, the position of the lower rear bumper support 50 can be adjusted in the left-right direction. Each of the horizontal rail member 38, the vertical rail member 39, and the side end vertical rail member 31 has a rail groove, and the bolts 24 and 26 are adapted to be screwed into the female screws through the rail grooves, and to adjust the respective positions. Sometimes it is free to move along the rail groove.

  In this way, the lower front bumper support 40 supporting the left and right upper ends of the front bumper FB and the lower rear bumper support 50 supporting the left and right lower ends of the front bumper FB are both configured to be movable left and right, The width is adjustable so as to match the width of the front bumper FB to be placed and supported.

A lock mechanism 45 is provided below the lower front bumper support 40. The locking mechanism 45 is formed in a substantially inverted L-shape in the left-right direction, and its distal end engages with a plate body 46 protruding from the base 10 to move the lower frame main body 30 by the sliders 14, 14. And the position is fixed.
Further, a stopper 55 having a collision spring 56 for restoring the lower frame body 30 to its original fixed state after being pulled out while restricting the movement of the lower frame body 30 in the front-rear direction is provided at the left and right rear ends of the lower frame body 30. Is provided.
With the above-described configuration, the lower frame main body 30 can be moved back and forth by releasing the engagement state between the lock mechanism 45 and the plate body 46 from the state where the lower frame body 30 is held at the fixed position. After the work is completed, the frame body 30 is restored to the original state by using the elastic force of the collision spring 56 while restricting the frame body 30 from being pulled out too much.

  As shown in FIGS. 1, 2 and 4, the upper frame 60 includes a substantially rectangular upper frame body 70 in which a vertical member and a horizontal member are fixed vertically and horizontally, and an upper front bumper support 80. And an upper rear bumper support 90 are disposed in front and rear. The upper frame body 70 has, as a basic configuration, front horizontal rail members 71, 71 on the front between the left and right holding members 17, 17 on the support arm 16 extending forward from the upper end of the support column 15. Rear transverse rail members 75, 75 are provided at the rear portion between the holding members 17, 17.

  The upper-stage front bumper support 80 has a pair of front and rear saw-tooth-shaped receiving portions 83 supported on supporting legs 81 via holding members 82, and is supported on a base rail member 84 on which the supporting legs 81 are erected. It is supported on a front horizontal rail member 71 of the frame body 70. The base rail member 84 is provided on the front horizontal rail member 71 with a support bracket 61 and bolts 62 so that the position thereof can be adjusted left and right. The front side rail member 71 has a rail groove, and the bolt 62 is configured to be screwed into the female screw through the rail groove. ing.

  The upper rear bumper support body 90 is provided with a bumper receiving portion 92 provided on the top surface of an upright column 91, and a base member 93 supporting the base of the upright column 91 is horizontally mounted on the upper frame body 70. 75 is supported via a vertical rail member 76. A base member 93 is provided on the side surface of the vertical rail member 76 with a support bracket 63 and a bolt 64 so as to be adjustable in the front and rear direction. The vertical rail member 76 is attached to a rear horizontal rail member 75 by a support bracket 65 and a bolt 66. It is provided so that the position can be adjusted left and right. The rear horizontal rail member 75 and the vertical rail member 76 have rail grooves, and the bolts 64 and 66 are screwed into female screws through the rail grooves, and are guided and moved by the rail grooves during position adjustment. , Hardly come off.

  When using the bumper transport device 1 configured as described above, each part is adjusted according to the bumper to be transported. In the lower frame main body 30 holding the front bumper FB, the support legs 41, 41 of the lower front bumper support 40 are supported on the horizontal rail members 37, 37 which are laid on the lower frame main body 30, and the support bracket 21 is provided. It is fixed by bolts 22. To adjust the position of the lower front bumper supports 40 in the left-right direction, the bolts 22 are released from the lateral rail members 37 when the bolts 22 are loosened, and the support legs 41, 41 are provided along the rail grooves provided in the lateral rail members 37. Can be moved, and the position can be adjusted by sliding the lower front bumper support 40 left and right. After moving to the predetermined position, the lower front bumper support 40 is fixed to the position by tightening the bolt 22.

Similarly, the position of the lower rear bumper support 50 can be adjusted forward, backward, left and right. Adjustment of the position of the lower rear bumper support 50 in the front-rear direction is performed by loosening the bolts 24 of the support bracket 23 that fixes the support legs 51 of the lower rear bumper support 50, and the loosened bolts 24 are used as vertical rail members. The lower rear bumper support 50 is movable along the rail groove of 39, and after the lower rear bumper support 50 is moved to a predetermined position, the bolt 24 is tightened to move the lower rear bumper support 50 to the predetermined position. Can be fixed.
The position adjustment of the lower rear bumper support 50 in the left-right direction is performed by fixing the bolts 26 of the support bracket 25 for fixing the vertical rail member 39 to the horizontal rail member 38 and the rear end horizontal rail member 32. By loosening, the lower end rear bumper support 50 can move left and right together with the vertical rail member 39 along the rail grooves of the rear end horizontal rail member 32 and the horizontal rail member 38. By tightening the bolt 26 at an arbitrary position, the lower rear bumper support 50 can be fixed at an arbitrary position on the horizontal rail member 38 and the rear end horizontal rail member 32.

  The same adjustment is made for the upper frame 60. In the upper frame main body 70 holding the rear bumper RB, the base rail member 84 of the upper front bumper support 80 is provided with support brackets 61 and bolts on front horizontal rail members 71, 71 laid on the upper frame main body 70. It is fixed by 62. The upper front bumper support 80 can be moved in the left-right direction along the rail grooves of the front horizontal rail members 71 by loosening the bolts 62 for fixing the base rail member 84. Therefore, by moving to a position suitable for supporting the rear bumper RB to be transported and then tightening the bolt 62, it can be fixed at a position suitable for supporting the upper front bumper support 80.

Similarly, the upper rear bumper support 90 can be moved back and forth and left and right for adjustment. The upper rear bumper support 90 fixes the base member 93 to the vertical rail member 76 with the bolt 64 via the support bracket 63. The bolt 64 is configured to be movable along the rail groove of the vertical rail member 76. After loosening the bolt 64, moving it to an arbitrary position, and tightening it again, the upper rear bumper support 90 is fixed at an appropriate position. it can.
The vertical rail member 76 is fixed to the rear horizontal rail member 75 with a bolt 66 via a support bracket 65. The bolt 66 is configured to be movable along the rail groove of the rear lateral rail member 75. After loosening the bolt 66 and moving it to an arbitrary position, the upper rear bumper support 90 is moved to an appropriate position by tightening again. Can be fixed.

  As shown in FIGS. 2 to 4, the front bumper FB is placed on the lower frame 20, and the rear bumper RB is placed on the upper frame 60. The front bumper FB is held on a flat receiving portion 42 of a lower front bumper support 40 whose front portion is mounted on the front portion of the lower frame main body 30 of the lower frame 20. The flat receiving portion 42 is configured to incline downward toward the rear portion of the lower frame main body 30. FB can be supported. Further, the rear end of the front bumper FB is fitted and mounted in the notch 53 of the bumper receiving member 52 of the lower rear bumper support 50 as shown in FIG. With the above configuration, the possibility that the front bumper FB falls from the lower frame main body 30 during transportation is reduced as much as possible.

  As shown in FIGS. 2 to 4, when the rear bumper RB is mounted on the upper frame 60, the front end of the rear bumper RB is mounted on the front of the upper frame body 70 of the upper frame 60. 80 are held on the serrated receiving portion 83. The sawtooth-shaped receiving portion 83 has a plurality of concave portions in a side view in the front-rear direction, and can select and mount an arbitrary concave portion according to the height of the mounting portion of the rear bumper RB. The rear portion of the rear bumper RB is placed and held on the bumper receiving portion 92 of the upper rear bumper support 90.

  As described above, each support member can be adjusted left and right or front and rear, and the bumpers can be conveyed with a high degree of freedom for bumpers having different dimensions and specifications. By preparing a plurality of bumper transport devices 1 that are adjusted to the size and specification of the bumper to be handled and using them sequentially, it is possible to mix and use ones having different sizes and specifications.

  The description of the above embodiment is an example of the present invention, and the present invention is not limited to the above embodiment. For this reason, it goes without saying that various modifications can be made according to the design and the like, other than the embodiments described above, as long as the technical idea according to the present invention is not deviated.

DESCRIPTION OF SYMBOLS 1 Bumper conveyance apparatus 10 Base 20 Lower frame 30 Lower frame main body 31 Side end vertical rail member 32 Rear end horizontal rail member 33 Inner vertical rail member 34 Front end connection member 35 Frame 36 Frame connection member 37, 38 Horizontal rail member 39 Vertical Rail member 40 Lower front bumper support 41 Support leg 42 Flat receiving part 45 Lock mechanism 46 Plate 50 Lower rear bumper support 51 Support leg 52 Bumper receiving member 53 Notch 55 Stopper 56 Collision spring 60 Upper frame 70 Upper frame body 71 Front horizontal rail member 75 Rear horizontal rail member 76 Vertical rail member 80 Upper front bumper support 81 Support leg 82 Holding member 83 Serrated receiving portion 84 Base rail member 90 Upper rear bumper support 91 Upright column 92 Bumper receiving Part 93 Base member FB Front bumper RB rear bumper

Claims (5)

On the base, the lower frame for supporting the bumper and the upper frame for supporting the bumper are arranged so as to overlap vertically,
In the lower frame, the lower frame main body, the lower front bumper support, and the lower rear bumper support are provided so that the position can be adjusted by sliding forward, backward, left and right, respectively.
A bumper transport device, wherein the upper frame is provided with an upper front bumper support and an upper rear bumper support which are slidable back and forth and right and left on the upper frame body so as to be adjustable in position. On the base, the lower frame for supporting the bumper and the upper frame for supporting the bumper are arranged so as to overlap vertically,
In the lower frame, the lower frame body, a lower front bumper support, and a lower rear bumper support are arranged in front and rear,
The lower front bumper support is provided so as to be adjustable in position by sliding left and right, and the lower rear bumper support is provided so as to be adjustable in position by sliding forward and backward and left and right,
In the upper frame, the upper frame body, the upper front bumper support, and the upper rear bumper support are arranged back and forth,
The upper-stage front bumper support is provided so as to be adjustable in position by being slid left and right, and the upper-stage rear bumper support is provided so as to be able to be adjusted in position by being slid forward, backward and left and right. On the base, the lower frame for supporting the bumper and the upper frame for supporting the bumper are arranged so as to overlap vertically,
In the lower frame, the lower frame body, a lower front bumper support, and a lower rear bumper support are arranged in front and rear,
The lower front bumper support is provided so as to be adjustable in position by sliding left and right, and the lower rear bumper support is provided so as to be adjustable in position by sliding forward and backward and left and right,
In the upper frame, the upper frame body, the upper front bumper support, and the upper rear bumper support are arranged back and forth,
The upper front bumper support is provided so as to be adjustable in position by sliding left and right, and the upper rear bumper support is provided so as to be adjustable in position by sliding forward and backward and left and right,
A bumper transport device, wherein a support column is erected at a rear end of the lower frame main body, and the upper frame main body is supported on the support column. On the base, the lower frame for supporting the bumper and the upper frame for supporting the bumper are arranged so as to overlap vertically,
In the lower frame, the lower frame body, a lower front bumper support, and a lower rear bumper support are arranged in front and rear,
The lower front bumper support is supported on a horizontal rail member laid horizontally on the lower frame body, and provided on the horizontal rail member so that the position can be adjusted by sliding left and right with a support bracket and bolts,
The lower rear bumper support is supported via a vertical rail member on a horizontal rail member laid on the lower frame body, and the vertical rail member is slid back and forth with a support bracket and a bolt so that the position can be adjusted. Provided, the vertical rail member is provided on the horizontal rail member by a support bracket and a bolt so as to be slidable left and right, and position can be adjusted,
In the upper frame, the upper frame body, the upper front bumper support, and the upper rear bumper support are arranged back and forth,
The upper-stage front bumper support is supported on a horizontal rail member laid on the upper frame main body, and is provided on the horizontal rail member so that the position can be adjusted by sliding left and right with a support bracket and bolts.
The upper rear bumper support is supported via a vertical rail member on a horizontal rail member laid horizontally on the upper frame body, and the vertical rail member is slid back and forth with a support bracket and a bolt so that the position can be adjusted. Provided, the vertical rail member is provided on the horizontal rail member by a support bracket and a bolt so as to be slidable left and right, and position can be adjusted,
A bumper transport device, wherein a support column is erected at a rear end of the upper frame main body, and the upper frame main body is supported on the support column.   The front lower bumper support and the upper front bumper support are each provided with a flat receiving portion extending in a front-rear direction, and the other is provided with a serrated receiving portion arranged in a front-rear direction. The bumper conveying device according to any one of claims 1 to 4.

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